SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSISUZU1997OASIS SREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - SYSTEM/COMPONENT TESTSCOMPUTERIZED ENGINE CONTROLSENGINE CONTROL MODULE (PCM)POWER CIRCUITS
1997 Isuzu Oasis S

Power Circuits

1997 Isuzu Oasis SSECTION Power Circuits
  1. Check for battery voltage between appropriate PCM connector Voltage Back-Up (VBU) terminal and ground. See POWER & GROUND CIRCUIT TERMINAL IDENTIFICATION . See Fig 1. If battery voltage does not exist, check appropriate PCM fuse. See PCM POWER CIRCUIT FUSE IDENTIFICATION . If fuse is okay, check for an open in wire between fuse and appropriate PCM connector terminal. See WIRING DIAGRAMS article.
  2. Turn ignition on. Check for battery voltage between appropriate PCM connector Ignition Power (IGP) source terminal and ground. See POWER & GROUND CIRCUIT TERMINAL IDENTIFICATION . If battery voltage does not exist, check appropriate fuse. See PCM POWER CIRCUIT FUSE IDENTIFICATION . If fuse is okay, check for open in wire between fuse and appropriate PCM connector terminal. Check for defective ignition switch. See WIRING DIAGRAMS article.
    POWER & GROUND CIRCUIT TERMINAL IDENTIFICATION

    Application (1) PCM Terminal
    Ground Circuits
    Logic Ground (LG1 & LG2) A9, A22, D11 & D12
    Power Ground (PG1 & PG2) A10, A23, D11 & D12
    Power Circuits
    Ignition Switch In OFF Position (VBU) (2) C10
    Ignition Switch In ON Position (IGP1 & IGP2) (3) A11 & A24
    (1) Use illustration for terminal location. See Fig 1.
    (2) Voltage Back-up (VBU) power supply, battery voltage at all times.
    (3) Battery voltage with ignition on and zero volt with ignition off.
    PCM POWER CIRCUIT FUSE IDENTIFICATION

    Application Fuse
    Ignition In OFF Position (1) No. 39 BACK-UP (7.5-amps)
    Ignition In ON Position (1) No. 33 ECU (10-amps) (15-amps)
    (1) Located in underhood fuse/relay box.
    Fig 1: PCM Harness Connector Terminal Identification
    G96D09587Courtesy of AMERICAN HONDA MOTOR CO., INC.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.